FRIEDLAND SPECTRA 140 Manual De Instrucciones página 10

Setting up for automatic
operation
When Walk Tests are complete, the unit can
be set for automatic operation as follows:
Step 1
The TIME setting controls how long the
lamp load remains illuminated following
activation and after no further movement is
detected. The minimum time (TIME control
fully anti-clockwise) is approx. 5 seconds,
whilst the maximum time (TIME control
fully clockwise) is approx. 15 minutes.
Set the control to the desired setting
between these limits.
NB: It is important to understand that the
time setting determines how long the lamp
will remain illuminated after all motion
ceases. For example, say the time is set at
1 minute, someone then activates the
sensor and remains in the detection area
for 2 minutes before leaving.
The lamp will remain illuminated for the 2
minutes whilst the intruder is present and a
further 1 minute after he/she leaves, giving
a total ON time of 3 minutes (all timings
are approximate).
Step 2
The LUX control determines the level of
darkness required for the unit to start
operating each evening. The setting is
best achieved by the following procedure:
- Set the LUX control knob fully anti-clockwise.
Wait until evening.
- When the ambient light level reaches the
level of darkness at which you wish the
lamp to become operative (i.e. at dusk),
slowly rotate the control in a clockwise
direction until a point is reached where the
lamp illuminates. Leave the control set at
this point.
At this position, the unit should become
operative at approximately the same level
of darkness each evening. Observe the
operation of the unit over a period of a few
days. If you find that the unit is starting to
operate too early (i.e. when it is quite light),
adjust the control slightly anti-clockwise. If
the unit starts to operate too late (i.e. only
when it is very dark), adjust the control
slightly clockwise.
Continue to adjust until the unit operates
as desired.
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